Combined silk tube and spindle retainer



Oct. '1 1924. 151L104 L. A. CADORET COMBINED SILK TUBE AND SPINDLE RETAINER Filed April 16 1923 Patented Get, '7,

LOUIS ALEXANDRE GADOBET, E PAWCLUGKE'I, RHQDE ISLAM COMBINED SILK TUBE AND SPINDLE RETAINER.

bined Silk Tubes and Spindle Retainers;

and I do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates broadly to improvements on shuttles, but it has more specific reference to an improved retainer which is to be permanently secured in the shuttle, the same being such as to enable the usual pivoted spindle to be entirely dispensed with.

The prlnclpal ob1ect of the invention is to provide a simple and inexpensive retainer constructed from a single length of wire and so bent as to enable it to serve a double function, that is, to hold the spindle in operative positionand to simultaneously grip and retain a silk tube on the spindle.

Another object of the invention is to provide a retainer of the above type which is such in construction that it can be employed for directly engaging and holding in place a conventional type of bobbin.

A further object of the invention is to utilize unique means for securing the retainer in the shuttle without requiring extensive altering or cutting of the same.

Other objects and advantages of the invention will be apparent as the description goes on.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a top plan view of one end of a conventional type of shuttle showing the improved combination retainer associated therewith.

Figure 2 is a bottom plan view of Fig. 1 disclosing more clearly the method of securing th retainer to the shuttle.

Figure 3 is a side elevation of the same end of the shuttle with portions broken away and shown in section to disclose the construction more clearly.

Figures 4 and 5 are transverse vertical sections taken on the lines ek-et and 5-5 respectively of Fig. 3.

Application filed April 15, 1923. Serial No. 532,443.

Figure 6 is a detail perspective view of the improved retainer and spreader plat-e. Figure 7 is a view like Fig. 1 showing the manner in which the retainer co-acts with the ordinary type of bobbin. 7

In the drawings, the letter S designates a conventional form of shuttle, A designates a removable tapered spindle having a head II at its inner end, and T designates a con ventional type of circumferentially grooved silk tube which is fitted onto the spindle. At this time, it may also be conveniently mentioned that the letter B (Fig. 7) designates a conventional type of bobbin with which one embodiment of the improved retainer is capable of co-action. I

The improved retaineris generally desig nated by the reference character 1. and although it may be constructed otherwise, it is preferably formed from a single length of wire which is bent between its ends as at 2 to provide a pair of spaced parallel attaching arms 3. Intermediate their ends, the arms are bent down as-at i and their free extremities are bent at rightangles to extend upwardly. These upbent portions constitute gripping jaws 5 adapted to grip the silk tube and spindle in the manner shown. In order to insure an effective grip, the central portions are bowed outwardly intermediate their ends so as to conform to the surfaces which they grip. Also, the extremities of the jaws are flaredas indi cated at 6 to facilitate insertion of the spindle and tube.

As before indicated, it is desirable to so design the retainer as to enable it to be secured to a conventional type of shuttle without requiring extensive alterations. It is obvious that with the type of retainer described, it is only necessary to form a relatively narrow and longitudinally elongated recess 7 in the bottom of the shuttle adjacent the lefthand end and to form undercuts in the bottom of this recess as indicated at 8. It is obvious that the recess 7 is sufiiciently wide to accommodate the attaching portion of the retainer, but the undercut portion 8 of the recess is of a greater width than the distance between the attaching arms 3. Inasmuch as the inherent resiliency of the wire causes the attaching arms and gripping jaws of the retainer to approach one another, it is necessary in order to hold the arms in the undercut part of the recess to make use of a small flat plate 9 which may be conveniently termed a spreader. As seen in Fig.6, this plate is positioned between the attaching arms with its curved end 10 engaged with the correspondingly bent portion 2 of the retainer. By placing the plate 9 between the arms, the latter are spread in the undercut part of the recess. To act in conjunction with this plate, a retaining bolt 10 is employed and the plate is termed with an opening to accommodate the head of the bolt and the shuttle is provided with a vertical bore to permit passage of the bolt therethrough. If desired, the upper end of the bore of the shuttle may be shaped as shown to accommodate the nut on the bolt and to prevent acoidental rotation thereof.

It is obvious that the type of retainer just described is comparatively small and is especially adapted for use in connection with the metal spindle and silk tube shown in Fig. 3. It is further obvious that when the retainer is in place. the gripping jaws are spaced from the solid portion P of the shuttle so as to accommodate the head H of the spindle In use, it will be seen that the improved retainer will serve a double functiomthat is, to hold the spindle in operative position, and to simultaneously grip and retain a silk tube or similar threadcarri-er on. the spindle.

As before intimated. the type of retainer herein described is also capable of being used in connection with an ordinary type of cotton holding bobbin B asseen in Fig. 7.

By directing attention to this figure, it will be seen that it is only necessary to enlarge the jaws of retainer to accommodate the bobbin. The curved portions .5 of the en larged gripping jaws are received in the usual groove G the head of the bobbin and an effective is assured. The free extremities 6* ,are also spaced a greater distance apart than first described. in

The foregoing description when considered in connection with the drawings will in the type of retainer doubtless be 'suflicient to enable persons skilled in this art to obtain a clear understanding of the invention and the advanstrued broadly as thread-hblding .means or i as a core therefor.

I claim:

In combination, a shuttlehaving a recess formed in its botto m adjacent one end, the side walls of said recess being undercut. combined means in said shuttle for holding l Sp dle in operative position the'latter and for "simultaneouslyholding a threade on t sp n le, a d men-,5 b g formed from a single length of wire bent betweenits endsto provide space'd'p'arallel attaching arms, the outer end's of said being bent upwardly at substantia l right angles to rovide a pair of spaced gripping jaws which are bowed "outwardly intermediate their ends to conform to portions of an object to be gripped therQbM the free extremities of the jaws being flared but wardly in opposite directions to facilitate insertion of the obj-ectbetween them, and a spreader'p late arran ed bfitween said arms for forcing them into the undercut portion of the aforesaid recess for maintaining said means in place. Intestimony whereof I have hereunto affixed my signature.

ows ALEXANDBE e- 3 1 

